diff options
Diffstat (limited to 'backends/lean/Base/Diverge')
| -rw-r--r-- | backends/lean/Base/Diverge/Elab.lean | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/backends/lean/Base/Diverge/Elab.lean b/backends/lean/Base/Diverge/Elab.lean index 96f7abc0..f109e847 100644 --- a/backends/lean/Base/Diverge/Elab.lean +++ b/backends/lean/Base/Diverge/Elab.lean @@ -14,8 +14,8 @@ namespace Diverge syntax (name := divergentDef) declModifiers "divergent" "def" declId ppIndent(optDeclSig) declVal : command -open Utils open Lean Elab Term Meta Primitives Lean.Meta +open Utils /- The following was copied from the `wfRecursion` function. -/ @@ -47,21 +47,6 @@ def getSigmaTypes (ty : Expr) : MetaM (Expr × Expr) := do else pure (args.get! 0, args.get! 1) -/- Like `lambdaTelescopeN` but only destructs a fixed number of lambdas -/ -def lambdaTelescopeN (e : Expr) (n : Nat) (k : Array Expr → Expr → MetaM α) : MetaM α := - lambdaTelescope e fun xs body => do - if xs.size < n then throwError "lambdaTelescopeN: not enough lambdas"; - let xs := xs.extract 0 n - let ys := xs.extract n xs.size - let body ← mkLambdaFVars ys body - k xs body - -/- Like `lambdaTelescope`, but only destructs one lambda - TODO: is there an equivalent of this function somewhere in the - standard library? -/ -def lambdaOne (e : Expr) (k : Expr → Expr → MetaM α) : MetaM α := - lambdaTelescopeN e 1 λ xs b => k (xs.get! 0) b - /- Generate a Sigma type from a list of *variables* (all the expressions must be variables). |